How far is San Antonio, TX from Marfa, TX?
The driving distance from San Antonio, TX to Marfa, TX is about 404.4 miles (650.8 km), with a travel time of about 06h 45m by car.
- The straight-line flight distance is about 336.8 miles (542 km).
- For a round trip, plan for roughly 13h 31m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 45m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between San Antonio and Marfa.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Marfa.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1042 ft · 28 sec · West Market Street
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3
Turn left onto Navarro Street
1.3 km · 2 min · Navarro Street
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4
Enter the roundabout and take exit 2 toward San Pedro Avenue
26 m · 2 sec · San Pedro Avenue
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5
Exit the roundabout onto San Pedro Avenue
2891 ft · 1 min · San Pedro Avenue
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6
Turn left onto West Cypress Street
604 ft · 10 sec · West Cypress Street
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7
Turn straight onto East Fredericksburg Road
1.2 mi · 2 min · East Fredericksburg Road
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8
Turn right onto Interstate 10 West
657 ft · 13 sec · Interstate 10 West
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9
Take the ramp slight left toward I 10 West, US 87 North
553 ft · 14 sec
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10
Merge slight left onto McDermott Freeway
12.8 mi · 15 min · McDermott Freeway
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11
Keep slight right
306.3 mi · 4 hr 52 min
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12
Take the exit slight right toward US 67 south, FM 1776: Alpine, Sul Ross State University
1105 ft · 27 sec · La Entrada al Pacifico Corridor
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13
Continue on Interstate 10 West
613 ft · 18 sec · Interstate 10 West
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14
Turn left onto South US Higway 67
25.7 mi · 29 min · South US Higway 67
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15
Continue on South US Highway 67
21.6 mi · 24 min · South US Highway 67
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16
Continue on East US Highway 90
7.6 mi · 9 min · East US Highway 90
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17
Continue on East Avenue E
1.6 mi · 2 min · East Avenue E
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18
Continue on West US Highway 90
24.9 mi · 27 min · West US Highway 90
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19
Continue on East San Antonio Street
2109 ft · 1 min · East San Antonio Street
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20
Turn right onto South Highland Street
56 m · 10 sec · South Highland Street
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21
Turn left
58 m · 14 sec
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22
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Antonio and Marfa.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
McDermott Freeway
Keep slight right
306 mi · 04h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Cloudy leaving San Antonio and Sunny near Marfa.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Marfa?
The road trip is about 404.4 miles (650.8 km) and usually takes 06h 45m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Ozona is a useful midpoint, sitting about 202.1 miles from San Antonio and 202.3 miles from Marfa.
How much longer is the road route than the straight-line distance?
The direct path is about 336.8 miles (542 km), while the road route adds roughly 67.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $53.93 one way or $107.85 round trip. Estimated CO2 is about 126.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around San Antonio and Sunny near Marfa.
Flight Path Map
This map shows the direct air route between San Antonio and Marfa. Straight-line distance: 336.77 mi (541.98 km).
#1 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
#2 Marfa
Small town in western Texas
| Population | 1,591 |
| Coordinates | 30.3097300, -104.0213400 |
| Altitude | 1428 |
| Country | United States |
End: Marfa (-104.02134, 30.30973)
Estimated Travel Time
Distance: 651 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 28m |
| 40 mph (64.37 km/h) | 10h 06m |
| 50 mph (80.47 km/h) | 08h 05m |
| 60 mph (96.56 km/h) | 06h 44m |
| 70 mph (112.65 km/h) | 05h 46m |
| 80 mph (129 km/h) | 05h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $53.93 | $107.85 |
| Mid-grade | $4.25 | $60.68 | $121.35 |
| Premium | $4.59 | $65.51 | $131.03 |
| Diesel | $3.99 | $56.98 | $113.96 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.